Perforator



Oct. 4, 1938.

E. G. Rlx

PERFoRAToR Filed May 1s, 1957 III-6 Patented Oct. 4, 1938 I Arai' OFFICEi PERFoRA'roR Edward G. Rix, Chicago, ill., assigner to AmericanPerforator Company, Chicago, lll., a corporation of Illinois ApplicationMay 13, 1937, Serial No. 142,325

Claims.

My invention relates to perforators.

One of the objects of my invention is to provide a perforator havingimproved actuating means for the punch-carryingy slide.

5 A- further object of my invention is to provide an improved perforatorin which the lower punch guide which serves as` a stripper plate isfitted with a head so that it will locate the stripper plate to bringthe holes into alignment with the punches and with the holes in the dieplate.

A further object of my invention is to provide an improved perforator inwhich the head is provided with guides for the pusher bar and with wellsor recesses to receive the lever re- ]5 turning spring and the bumperfor the lever.

A further object of my invention is to provide a perforator in whichstop links are provided to limit the upward movement of the lever.

A further object is to provide an improved perforator in which the leverpivoted on the head actuates the pusher bar and is provided with stoplinks, and means for holding the upper end of the returning spring inplace.

A further object of my invention is to provide an improved perforatorhaving aligned holes in the spring well and lever for receiving apacking screw.

A further object of my invention is to provide an improved perforatorhaving aligning openings in the stripper plate and die to hold theseparts in their proper relative position when drilling the holes in thedie plates.

A further object of my invention is to provide a perforator constructionwhich can be used in building up perforators having diierent depths ofthroat, simply by changing the plate brackets and base.

Further objects and advantages of the invention will appear from thedescription and claims.

In the drawing, in which is shown an embodiment of my invention,

Figure l is a side elevation oi a perforator;

Fig. 2 is a section substantially on the line 2-2 of Fig. 3;

Fig. 3 is a section substantially on the line 3-3 of Fig. 2;

Fig. 4 is a horizontal section on the line 4 4 of Fig. 2 and showingalso in plan the bumper which is above the line 4 4;

Fig. 5 is a detail showing the stripper plate and die plate; and

Fig. 6 is a side elevational View of the stripper plate and die plateassembled in position for drilling the holes in the die plate.

.55 Referring to the ldrawing in detail, the perforator shown comprisesa base I which may be of cast metal, a pair of parallel spaced platebrackets 2 mounted on the rear end of the base and having portionsoverhanging the base to provide a throat between the base and brackets,5 a head 3 which may be. a die casting extending between said platebrackets and supported thereby, a punch-actuating slide or pusher 4extending between said side plates and having its ends slidably mountedin vertically extending guide '10 channels 5 in the side plates 6forming part of the head 3, an actuating lever 1 for the punchactuatingmember 4 pivotally mounted at 8 on the head 3 adjacent the front endthereof and extending rearwardly from its pivotal axis, a l1&5 coilcompression spring 8a' for returning the lever 'I, a pair of links 9pivotally connected at IIl with the lever I and at II with the ends .ofthe punch-actuating member 4, a punch guiding and stripper plate memberI2 below the punch- 20 actuating member 4, and a die plate I3 below thestripper plate I2 and riveted to the base I at I4. The base I isprovided with a pair of upwardly extending standards I5 at its rear endto which the plate brackets 2 may be secured by rivets I6, lL25 or thelike. The head 3 provided with the pair of side plates 6 lying againstthe plate brackets 2 may be secured thereto in any suitable manner, asby rivets Il. The front end of the head 3 is recessed as indicated at I8to receive the front 30 ends of the plate brackets 2. The front end ofthe head is also provided with a pair of horizontally extending recessesI9 to receive and position a pair of parallel horizontal tongues 20' onthe guiding and stripper member I2, as 35 shown in Fig. 1.

The spring well 2I which receives the lower end of the spring 8a. issupported by and between the side plates 6 of the head by means of webs22, as shown in Figs. 2 and 4. The 4bumper- 40 receiving pocket 23 isalso supported by and between the side plates 6 of the head by means ofwebs 24.

A pair of links 25 are provided for limiting the upward movement of thelever l, these links 45 being pivotally connected with down-turnedportions of the lever, as indicated at 26. The links are slotted at 21to receive a screw 28 which extends through the tongues 20, vplatebrackets 2, and side plates 6, as shown in Figs. 2 and 4. 50

The punch-actuating member 4 comprises a pusher member 29 which may be adie casting pivotally connected with the actuated links 9 at II and achannel member 30 which may be ot sheet metal secured to the pushermember by means of rivets 3| or the like( The heads of the punches 32are held between the pusher member andthe channeled lifter member asshown in Fig. 2. The lower ends of the punches are guided in thestripper plate l2 so as to pass through the openings in the die plate I3when the lever 'I is depressed.

In the manufacture of the stripper plate and die plate, the .punchopenings in the stripper plate I2 may be die-cast. The stripper plate I2and die plate I3 are then assembled in properv relation by means ofpositioning pins 33 passing through registering openings in the stripperplate and die plate, as shown in Fig. 6. The punch openings'in the dieplate I3 may then be drilled, using the openings in the stripper plateas guide openings for the drills. The positioning pins 33 may then beremoved and when the strip-A per plate and die plate are assembled intheperforator, the openings will be properly' positioned so that thestripper plate openings Will align with the die plate openings.'

The lower end of the lever returning spring 8a is positioned in thespring well 2| and .the upper end is positioned by the.downwardly-punched circular flange 34 in thev actuating lever whichextends into the upper end Yof the lever-returning spring. The lower endofthe spring well is provided with an opening 35 which is in .alignmentwith'the .opening formed by the flange 3,4 in the lever when rthe leveris depressed, so that in packing the perforator for shipment, a screwcan be inserted through these openings and a nut threaded 4into the.ends of the screw to hold the vlever in its lowered position.

Further modications willbe .apparent to .those skilled in :the art andit is desired, therefore,'that the -invention be limited only by theprior art `and .the scope of the appended claims.

Having thus vdescribed my invention, what I .claim and desire to secureby Letters Patent is:

1. A perforator comprising a base, a pair of parallel spaced platebrackets mounted on .the .rear end ot said base and having portionsover- .hanging said base to provide a throat between the base andbrackets, a head yextending beftweensaid fplate fbrackets 4and supportedthereby,

ysaid head comprising a Ipair of parallel spaced side `plates Aextendingalong and secured to said v.plate brackets, veach side plate havingavertically-extending guide lchanneltherein adjacent its .front end, apunch-actuating member extend- Fhanging said lbase -to provide a -throatbetween the base Yand brackets, a head extending between said platebrackets and supported thereby, saidhead comprising a pair Vof parallelspaced side plates extending along and secured to said plate brackets,each `side plate having va vvertically-.extending guide channel thereinadjacent .its `frontend, a punch-actuating member extend- ,ingbetweensaid side plates rand having its ends .-slidablymounted in saidchannels, an actuating lever `for .saidpunch-.actuating memberVpivotally mounted on said head adjacent the front end thereof andextending rearwardly from its pivotal axis, a pair of links pivotallyconnecting said lever with the ends of said punch-actuating member, anda punch guiding and stripper plate member. below said punch-actuatingmember, said guiding and strippermember having a pair of parallelhorizontal tongues embracing said head, said head having a pair ofhorizontally-extendingrecesses to receive and position said tongues.

rear end of said base and having portions overhanging said base toprovide a throat between the base and brackets, a head extending betweensaid plate brackets and supported thereby, saidY head comprisinga pairof parallel spaced side plates extending along and secured to said platebrackets, each side plate having a vertically-extending guide channeltherein adjacent its front end, a Punch-actuating member. extendingkbetween said side plates, and .having .its ends .slidably mounted insaid channels, an actuating le,- ver `for said punch-actuating memberpivotally mounted on said head .adjacent the iront ,nd thereof andextending rearwardly from :its p i-y.-V otal axis', and a pair of linkspivotally .cpnneeting saidl lever' with theends .of said punch-actua?ing member, said head having a spring well sup.- ported by and betweensaid side plates, and a n io 3. A perforator comprising a base, a pairofparallel spaced plate brackets mounted on theV .coil Yspring having itslower .end supported in` said well and its upper endjacting on saidlevensaid head also having a bumper pocket support;

.ed by and between said side plates, .and a bumper mountedin said pocketfor engaging `said lever. i

Vhead comprising a. pair -of parallel spaced side plates extending alongand secured to said plate brackets, each side vplate having avertically-extending guide channel therein adjacent ...its 1front end, apunch-actuating member extending be,-

Itween said side plates and having its ends slid- 2 ably mounted in saidchannels, an actuating le- .ver for .said punch-actuating member.pivotall-y mounted Aon .said head adjacent .the front fend thereof andextending rearwardly from its piv- -otal axis, a pair of linksypivotally vrconnecting said lever with the ends `Y01E saidpunch-actuating member, and a coil compression spring for 4,raising saidlever, said lever being of sheet material f having its oppositelongitudinal edges lturned .downwardly to provide pivotal connectionsAfor said links and having -a depressed portion Iex- Y .tending insidethe upper end' of said .coil spring for centering it. V

5. AA perforator .construction .comprising a punch guiding-and stripperplatefmember having a plurality of punch-receiving holes therethrough,

`and a die .plate having .a plurality of Ypunch-,re-

ceiving openings in alignment with Ythe Y.punchof registering openings.therein to receive Vposi#V ,tioning pins for holdingthe yguidingandstripper plate and the die plate in dennite-,relative ipositions,whereby .the stripper v plate openings gan tbe used as guides inydrilling fthe openings in the die plate.

. EDWARD G.

